[Zope] and remote databases in other [zopes]

Hello! I have the folowing problem: I'm using Zope on a SUN Sparc machine running Solaris.. The site works nice, but I need to access the data, that is placed on a Microsoft SQL Server on a Windows NT and i cant change that :\ I've read in the Docs when i was installing that is possible to have a zope in each machine.. and use the one in the NT like an iterface. For example: Lets say.. If I define a Dtml method that gets the data from the SQL in the zope in Windows NT.. Can I call that method from the Zope in the SUN to retrieve the data from the Microsoft SQL?. If there's a way to do this (with 2 zopes or another way).. could someone please explain me how to do it? Thanks! Nahuel Greco.